#424FB8#424FB8

#424FB8 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.165 H 273.1°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#424FB8
RGB	rgb(66, 79, 184)
HSL	hsl(233, 47%, 49%)
HSV	hsv(233, 64%, 72%)
CMYK	cmyk(64.1%, 57.1%, 0%, 27.8%)
CIE-LAB	lab(38.22, 28.41, -57.23)
CIE-LCH	lch(38.22, 63.90, 296.40°)
OKLab	oklab(47.85% 0.009 -0.1646)
OKLCH	oklch(47.85% 0.165 273.1)
XYZ	xyz(13.6916, 10.2097, 46.5873)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FB8 #B8AB42

analogous

#428AB8 #424FB8 #7042B8

triadic

#424FB8 #B8424F #4FB842

tetradic

#424FB8 #B8428A #B8AB42 #42B870

square

#424FB8 #B8428A #B8AB42 #42B870

split-complementary

#424FB8 #B87042 #8AB842

monochromatic

#22285E #323C8B #424FB8 #6D77CB #9AA1DB

Accessibility & contrast

On white

6.90

#424FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#424FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FB8

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FB8	#FFFFFF	#000000	##FFFFFF
##424FB8	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBC

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #424fb8;
/* rgb */ color: rgb(66, 79, 184);
/* oklch */ color: oklch(47.8% 0.165 273.1);

Tailwind

colors: {
  custom: {
    50: '#8380ce',
    500: '#424fb8',
    950: '#000000',
  },
}

SCSS

$custom: #424fb8;
$custom-light: #8380ce;
$custom-dark: #000000;

JSON

{
  "hex": "#424fb8",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 184
  },
  "hsl": {
    "h": 233.39,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.47849,
    "c": 0.16481,
    "h": 273.1
  },
  "luminance": 0.10211
}

Semantic roles & 50–950 ramp

primary

#424FB8

secondary

#C7C18F

accent

#C851D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424FB8

Body copy rendered with the generated semantic roles for this colour.

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